Home / 11,718.77-17,579.52-4,117.71

Finding the Fourth Proportional to 11,718.77, 17,579.52 and 4,117.71

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Solution

The fourth proportional to 11,718.77, 17,579.52 and 4,117.71 is: 6,177.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,718.77 : 17,579.52 = 4,117.71 : x
  2. Step 2: Convert to fraction form
    11,718.77/17,579.52 = 4,117.71/x
  3. Step 3: Cross multiply
    11,718.77x = 17,579.52 × 4,117.71
  4. Step 4: Simplify right side
    11,718.77x = 72,387,415.78
  5. Step 5: Solve for x
    x = 72,387,415.78/11,718.77
  6. Step 6: Final answer
    x = 6,177.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.